Guide for job-holding machines.



, H. F. SCHRECK;

GUIDE FOR JOB FOLDING MACHINES.

MPLICATION FILED DEC-27.1918.

Patented Apr. 1, 1919.

7 ?VVZ@%INVENTOR.

BY %M A TTORNEYS.

WITNESSES:

FFICE.

HARRY F. SQHRECK, OF DAVENPORT, IOWA.

GUIDE FOR J OB-HOLDIN G MACHINES.

Specification of Letters Patent.

Patented Apr. 1, 1919.

Application filed December 27, 1918. Serial No. 268,514.

To all whom it may concern:

Be it known that I, HARRY F. SCHJRECK, a citizen of the United States, residing at 2006 Gaines street, in the city of Davenport, county of Scott, and State of Iowa, have invented a new and useful Improvement in Guides for J ob-Folding Machines, of which the following is a specification.

My invention relates to adjustable guides for job folding machines used in printing offices for folding job work and is adapted to be attached to the rods or frame or other parts of a job folding machine; and the objects of my invention are to provide guides adjustable as to position and tension, which can be readily attached to existing forms of folding machines, can be easily and separately adjusted as to tension and position, can be manufactured and marketed at a low price, and afford an ample means of control over the papers traveling through the folding machine.

I attain these objects by the device illustrated in the accompanying drawing in which Figure 1 is a top or plan view of my device showing two of the tension rollers attached to a single support; Fig. 2 is a side elevation of my device showing the roller secured at the outer end of its support; Fig. 3 is a side elevation of the slotted bar support; Fig. 4 is a side elevation of my device with the tension roller mounted close to the slotted support bar; and Fig. 5 is the side elevation showing the roller attachment se cured to one of the paper guides of the fold ing machine.

Similar numerals refer to similar parts throughout the several views.

My device is applicable to the class of job folding machines which have movable tapes, passing over rollers or other means of transmitting motion thereto, and which carry the papers to be folded to and against a guide bar or other form of guide or stop secured to the folding machine. This guide bar is shown as 1, in Fig. 1, and it is common practice to have a lurality of rods, 2, either attached to the guidesor otherwise suitably se cured in position a short distance above the movable tapes 15, 15, to prevent the paper from buckling from the motion from the tapes.

In my attachment I provide a slotted bar 3, adapted to be secured by a clamp I, and

thumb screw 5, to one of the rods 2, of the folding machine; and the tension roller members of my attachment may be secured to the slotted bar 3, by set screws 8, 9, at any desired distance from the rod 2, or the tension roller members may be secured to the guide 1, of the folding machine by the set screw as shown in Fig. 5.

The tension roller members consist of a bar 17, 18, having one end slotted to engage a set screw 9, secured to the slo ted support 3 by a bur 0r nut in the ordinary way; or the bar 17 18, may be bored and threaded to receive the set screw 8, as in Fig. 1 and thus secure it to the slotted support 3. To the bar 1718, is secured, by a rivet or other suitable means, a curved spring 12, to the free end of which a yoke is secured carrying a roller 13, 14, suitably mounted therein.

A set screw 10, passes through a suitable threaded opening in the bar 17, 18, by which the position of the spring 12, and roller 14, can be adjusted, and is provided with a lock nut 11, to lock it in place when the desired adjustment is secured.

In the operation of my device, a plurality of the tension roller members are mounted upon the support bar 3, or the guides 1, with the rollers 13, 14, adjacent to the feed or carrying tapes of the machine with the tension so adjusted that the rollers 13, 14, bear upon the tapes with a light pressure, which pressure, of course, may be varied to suit the particular job on hand, and the individual tension roller members should have their tension so adjusted as to secure an accurate feed of the paper upon the tapes.

The tapes will then carry the paper to the guide 1, 1.

In cases where it is necessary to have the tension roller, 14:, close to the guide or support bar, the spring 12 may be attached to the bar 18, as. shown in Figs. 1 and 5, but where desired to have the roller 13 farther away from the supporting bar 3, the spring 12 may be attached as shown in Fig. 2.

It is obvious that various modifications in the particular form and arrangement of parts may be made without departing from the spirit of my invention.

I claim;

1. In a guide for job folding machines, the combination with a supporting bar, of a spring having one end suitably secured to the bar, a roller secured to the free end of the &1 1,2993% spring, and a set screw secured in the bar adapted to bear upon and regulate the tension of the spring and roller.

2' In a guide for job folding machines the combination With a supporting bar, of a spring having one end suitably secured to the bar, a roller secured to the free end of the spring, a set screw secured in the bar adapted to bear upon and regulate the tension of the spring and roller, and means for 10 securing the bar and roller in any desired position relative to the carrying tapes of the job folding machine.

HARRY F. SCHRECK Witnesses RUBY CLAUssnN, J. J. McSWreerN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0." 

